Canon PowerShot G15 Coming Next Week?

It looks like Canon may be announcing a true successor to the PowerShot G12 next week prior to Photokina 2012.  Recall that the Canon G1 X was announced earlier this year at CES 2012, causing speculation that the G-series may move to a larger sensor format.
The above leaked image appears to confirm, however, that the more compact-oriented camera line will continue with a PowerShot G15.
How relevant such cameras will be remains to be seen.  Certainly, if Canon has chosen to bump the sensor size up to something akin to Sony’s excellent RX100, the PowerShot G-line could be a real contender.  If the G15 is simply an incremental upgrade to the G12, then I fear the line may be dead in favor of cameras like the Sony RX100 and mirrorless cameras like the Canon EOS M and Sony NEX models.
[via Photo Rumors]